Beneficiary delivered broadcast in flight (8)

I believe the answer is:

airborne

I'm a little stuck... Click here to teach me more about this clue!

'in flight' is the definition.
(I've seen this before)

'beneficiary delivered broadcast' is the wordplay.
'beneficiary' becomes 'heir' (I've seen this in another clue).
'delivered' indicates a 'sounds like' (homophone) clue (delivered verbally).
'broadcast' becomes 'borne' (I am not sure about this - if you are sure you should believe this answer much more).
'heir' sounds like 'air'.
'air'+'borne'='AIRBORNE'

Can you help me to learn more?

(Other definitions for airborne that I've seen before include "Having taken off" , "in the sky" , "so, paras?" , "(Of aircraft) flying" , "Aloft, flying" .)

I've seen this clue in The Telegraph.

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